We'll be in DL on May 14th which is a "Grad Night". We're not going to be there for a grad trip, so how will this affect us? Does the park shut down early for the grads?
That means that is will be a weekday so lower crowds so you should be able to use touring guides, FP, single rider lines and other stuff to see most of the park that day. It is open early on a weekday which means you will have the park almost to yourself except for the MM crowd. Do not worry as good planning will help you do a lot that day.